Loudspeaker

Details Loudspeaker Loudspeaker

1997-11-26

1999-06-15

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

381412, H04R 2500

Patent

active

059129786

ABSTRACT:
A loudspeaker comprises a yoke; one or more vibration driving coils disposed so as to interact magnetically with the yoke when an electrical current flows through the coils; and one or more signal amplifying devices mounted on or near the yoke, the amplifying devices being operable to receive an input audio signal, to amplify the input signal to generate an amplified signal, and to supply the amplified signal to the vibration driving coils.

REFERENCES:
patent: 4625328 (1986-11-01), Freadman
patent: 4811403 (1989-03-01), Henricksen et al.
patent: 5325435 (1994-06-01), Date et al.
patent: 5642429 (1997-06-01), Janssen

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